Flushing of water-closet basins and the like.



C. HODGES & H. JACKSON.

FLUSHING OF WATER CLOSET BASINS AND THE LIKE.

APPLICATION FILED OCT. 27. I916.

1,292,776. Patented Ja11.28,1919.

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CHARLES HODGES AND HENRY JACKSON, OF WAIMATE, NEW ZEALAND.

FLUSHING OF HATER-CLOSET BASINS AND THE LIKE.

Specification of Letters Patent.

Patented Jan. 28, 1919.

Application filed October 27, 1916. Serial No. 127,982.

To (ZZZ whom it may concern:

Be it known that we, CHARLES Honors, a subject of the King of GreatBritain, residing at High street, Waimate, New Zcaland, and HENRYJACKSON, a subject of the King of Great Britain, residing at Mansestreet, lVaimate, New Zealand, have invented new and useful Improvementsin and Re lating to the Flushing o1": ater-Closet Basins and the like,of which the following a specification.

This invention relates to the flushing of water-closet basins, itsobject being to provide a flushing means which will combine theadvantages of silence in action, cheapness of cost, and convenience andefliciency in use, while the invention is such that no valves areemployed'in the cistern to control the action of the flush.

In carrying this object into effect the invention consists essentiallyin the provision of an air-lock by means of which the siphonic action ofthe flush is controlled and a special construction and arrangement ofthe cistern whereby a silent and eiiicient admission. or" water theretois obtained.

In order that the nature of the invention and its construction may befully understood, reierence will now be made to the accompanying sheetof drawings in which 2- Figure 1.is a sectional elevation of a cisternand other portions of the system connected therewith constructed inaccordance with the present invention, and,

Fig. Q.is a plan view of the same.

1 is a cistern which may be of the same dimensions as those hithertoslightly larger in order to contain the necessary quantity of water forthe flush. Into the said cistern 1 :water is'admitted from theservice-pipe 2 automatically by means of aball-cock 3, as customary. 1According to the present invention th ball-cock 3 is positioned at apoint near the bottom of the cistern in order that it may at all timesbe submerged by the water which will therefore serve to mufie the soundof the admission. To produce a quick and positive action in cutting-01fthe ball l controlling the said cook the ball is arranged to float in asmall compartment or chamber 5 which is separated from the main portionof the cistern 1 by a wall or partition 6, the arm or lever 7 connectingthe cock with the ball being suitably bent or cranked to pass over thetop of die wall 6.

in use 01" According to the present invention also the upper end of theflush-pipe 8 terminates within the cistern 1 in an Sstrap 9, the mouthor orifice 10 of which extends upward to the desired height within asiphonbell 11.

The arrangement is such that an air-lock is produced in the top of thebell 11 which air-lock normally prevents the siphonic action from takingplace. To release the airlock and so produce the siphonage when a flushis required therefore, a pipe 12 is led from the top of the bell 11 toany convenient point where it terminates in a valve adapted to be openedby the action of a press-button 13 in order to establish communicationbetween the upper portion of the bell and the atmosphere.

This press-button 13 may be positioned at any convenient point so thatit may be operated by the hand, foot, knee or other portion of theoperator.

To cause the siphonage to be .oroken when the desired amount of waterhas been discharged, a break-pipe 14 is arranged to communicate betweenthe upper portion of the bell 11 and the cistern 1 at a point near thebottom of the latter. In order to secure a sudden and positive breakingof the siphon and to provide means of escape for the surplus air whichwould otherwise accumulate and become compressed in the bell during thefilling of the cistern, the lower end of the said break-pipe issurrounded by a sleeve or pocket 15, the lower end of which is closedand rests upon the bottom of the cistern while its upper end is open andextends upward to a point a slight distance below the level of the mouth10 of the trap. The arrangement is such that during the flush, upon thewater-level of the cistern 1 becoming lower than the orifice of thebreakpipe 14, the water contained in the pocket 15 will he suddenlyinduced or sucked up the break-pipe 14: and discharged into the bell 11,thus causing the siphon to be broken and leaving the bell in freecommunication with the atmosphere. During the refilling of the cisterntherefore the bell will remain in this condition until the water-levelagain reaches the level of the top of the pocket, thus allowing thesurplus air to escape from the bell instead of becoming compressed andso giving rise to noise.

In operation, water from the service-pipe 2 is admitted by the ball-cock3 to the main portion of the cistern and such water, upon rising to thelevel of the to of the partition 6, overflows the latter and so fillsthe charm her 5, thus raising the ball at and so closing the cock 3. Itwill be understood therefore that, as the chamber 5 maintains its lowestwater-level up to the point at which the water overflows the partition,the cock will remain fully open up to this stage and consequently arapid admission will be obtained. Again the overflowing of a largequantity of water into the comparatively small chamber will produce anequally sudden rise of the ball which will in consequence close the cockquickly and positively so that it will be 11nafi'ected by any subsequentalterations in the water-pressure of the service-pipe.

As previously ment oned, the action of the siphon is normallyrestrained, so as to prevent a discharge of water from the cistern 1down the flush-pipe 8, by reason of the airlock in the bell 11. Upon thebutton 13 be.- ing pressed however the top of the bell will be placed incommunication with the atmosphere through the pipe 12, thus breaking theair-lockb The siphon will thus be permitted to opcrate and discharge thewater from the cistern down the flush-pipe to the basin in the requiredmanner.

To cause the water to be discharged from the chamber 5, a ipe 16 isarranged to communicatebetween the top bend of the trap 9 and thechamber at a point near the bottom of'the latter. Thus when the siphonicaction commences, the rush of water through the trap 9 will set up aninduction in the said pipe 16 which causes the water in the chamber torise and enter the top bend of the trap thereby commencing siphonagewhich completes the emptying of the chamber to' the required level. Inorder to guard against the reduction of the waterelevel in the chamberbelow the minimum determined upon, the said pipe is made of sufiicientlysmall bore to insure its taking an appreciable time to, discharge thewater from the chamber and a small hole 17 is formed through thepartition at a desired height.

ini s t P tent m y e attained for The arrangement is such that, shouldthe bu ton 3 be aga n press d befo e t tern is filled, the slow actionof the pipe 16 and the of water through the hole 17 will serve toprevent emptying of the chamber below the minimum level determined upon.The said hole 17 is however so small that it w ll 9; appreciably affectthe ordinary action of the apparatus as above described. a

"We claim 1. In apparatus of the character indicated the combinatinnwith a cistern having a siphon discharge, a siphon-bell constituting anair lock for controlling said siphon dis charge, a break-pipeadapted tobreak the. siphon when the desired amount of water has been discharged,said break-pipe connecting with the-upper portion. of the siphonbell andextending downward within the cistern to the. required point and apocket inclosing the lower portion of said break-pipe, such pocket beingclosed at its lower end while its upper end is open and extends upwardto the desired level, substantially as and for the purpose set forth.

2. A closet cistern having a siphon discharge, an air lock forcontrolling said siphon discharge, and means for preventing ruiduecompression of air within said air lock during filling of the cistern toprevent objectionable noises usually accompanying the filling operation.

3. A closet cistern having a siphon dis charge, an air lock forcontrolling said siphon discharge, means for breaking the said air.lock, and means coiiperating With said means for preventing compressionof air within said air lock during partial filling of the cistern.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

HARLES HQDGES HE RY A KSON- Witnesses:

GYRIL CARLYN (learns, $mnEgJAMEs five cent each, y esses the fi n isceer Haun s, W shing on, .2- Q r

